Duplex Check Valve

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Duplex Check Valve



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Check valves made up of various materials are available in the market. They differ in size, dimension, material, thickness, and surface. Duplex Check Valve is one such valve that is widely available. They are designed using mechanical as well as physical properties which include tensile strength, yield strength, elongation, and so on. Duplex 2205 Check Valves are available in various forms such as flanges end, socket weld, screwed, screwed parallel, and screwed taper. They are available in plates, spools, sheets, and various other forms. 

Duplex Stainless Steel Check Valve is used in condensers, heat exchangers, chemical industry, pharmaceutical industry, pulp, and paper industry, petrochemical industry, and power generation industry. Furthermore, duplex check valve manufacturers in India advise these valves to be used in offshore drilling, gas processing, seawater equipment, chemical equipment, and special chemical industries. They are also used in marine applications and oil refineries. 

Duplex Check Valve Function is to manage the pressure difference that might arise in the two air springs. When the pressure difference reaches 1.5 gm the valve allows air to flow from one air spring end to the other. The Duplex Spring Check Valve does not require any standard routine maintenance. The piston-type valves are usually used in compressed air breaks systems in railways.  The Duplex Check Valve Working can be understood by that of having 2 air ports. When the air pressure in one port is higher than the one in the second port by the set differential pressure then the valve allows the air to flow from the higher port to the lower port to balance the pressure.

 

 

Duplex Check Valve Manufacturer in india, No need to pay extra when you can buy Duplex Poppet Check Valve in exact sizes, check Alloy 2205 Check Valve Function

 

BRAND NAME TU-LOK
VALVE SIZE 1/8" TO 2" / 6 MM TO 50 MM
CONNECTION THREADED, TUBE END, SOCKET WELD END, FLANGE END
THREADS NPT, BSPP, BSPT, METRIC, JIC, UNF
FLOW PATTERN STRAIGHT
MANUFACTURER OF BODY SHAPE HEXAGON
PRESSURE RATING 1500 PSI, 3000 PSI, 6000 PSI, 10000 PSI, 15,000 PSI, 20000 PSI
CRACKING PRESSURE 0.5 BAR 
ORIFICE SIZE 2 MM TO 40 MM
MANUFACTURER OF TYPE POPPET TYPE, SPRING TYPE
MEDIA  HYDRAULIC OIL, AIR, WATER, GAS, STEAM, HOT WATER , COLD WATER , SEA WATER , CHEMICAL
MEDIA TEMPERATURE (-50* C TO 350*C ) RANGE AS PER PRESSURE
BODY TYPE BAR STOCK, FORGED
PACKING DETAILS BOX PACKING, WOODEN PALLET
EQUIVALENT BRANDS SWAGELOK, PARKER, STAUFF, DK-LOK, HAMLET, OLIVER VALVES, HOKE
MATERIAL DUPLEX 2205, UR52N+

 

Description
Price
Duplex Stainless Steel F51 Dual Plate Poppet Check Valve US $ 10-300 / Piece
API Duplex Stainless Steel Non Return Poppet Check Valve US $ 88-288 / Piece
Duplex Stainless Steel Butterfly Type Duo Check Valve US $ 28-189 / Piece
1" Cast Iron Wafer Duplex for Water with Competitive Price Silent Check Valve DN80 US $ 11-17 / Piece

 

 

Duplex Check Valve

 

Check Duplex Stainless Steel Check Valve Supply in size 1/8" TO 2" / 6 MM TO 50 MM or custom in Mumbai, view its Working

 

DUPLEX 2205 CHECK VALVE

DUPLEX 2205 CHECK VALVE

Duplex Stainless Steel Poppet Check Valve

DUPLEX STAINLESS STEEL Poppet Check Valve

ALLOY 2205 WAFER CHECK VALVES

ALLOY 2205 WAFER CHECK VALVES

 

  • PEEK
  • Virgin PTFE

 

Valves Size
Type
Cracking Pressure (psi)
Weight (lbs)
1/2" NPT 0.25 1.0
1/2" NPT 5.0 1.0
1/2" Socket Weld 0.25 1.0
1/2" Socket Weld 5.0 1.0
3/4" NPT 0.25 1.5
3/4" NPT 5.0 1.5
3/4" Socket Weld 0.25 1.5
3/4" Socket Weld 5.0 1.5
1" NPT 0.25 2.3
1" NPT 5.0 2.3
1" Socket Weld 0.25 2.3
1" Socket Weld 5.0 2.3
1 1/4" NPT 0.25 3.5
1 1/4" NPT 5.0 3.5
1 1/4" Socket Weld 0.25 3.5
1 1/4" Socket Weld 5.0 3.5
1 1/2" NPT 0.25 5.3
1 1/2" NPT 5.0 5.3
1 1/2" Socket Weld 0.25 5.3
1 1/2" Socket Weld 5.0 5.3
1 1/2" NPT 0.00 5.3
2" NPT 0.25 8.5
2" NPT 5.0 8.5
2" Socket Weld 0.25 8.5
2" Socket Weld 5.0 8.5
3" NPT 0.25 21
3" NPT 5.0 21
3" Socket Weld 0.25 21
3" Socket Weld 5.0 21

 

  • Overall quality inspection (Includes eddy current (non-destructive) electric testing.)
  • Dimension check such as lobing, tolerance, out-of-roundness.
  • Material verification
  • Final Mechanical Properties

 

Don't forget to check our latest price of Duplex Wafer and Ball Check Valve in India

 

Technical Dimensions of Duplex Poppet Check Valve

 

End Connections

Pressure Rating at 100°F (37°C)
psig (bar)

 

 

Series

Dimensions
in .0 (mm)

Size

Type

B

A

1/8 in .0

 

Fractional tube fitting

 

6000 (413)

 

CH4

 

11/16

2 .027 (57 .07)

1/4 in .0

2 .043 (61 .07)

3/8 in .0

 

CH8

 

1

2 .075 (69 .09)

1/2 in .0

2 .096 (75 .02)

3/4 in .0

5000 (344)

 

CH16

 

1 5/8

3 .052 (89 .04)

1 in .0

4700 (323)

3 .088 (98 .06)

6 mm

 

Metric tube fitting

 

6000 (413)

CH4

11/16

2 .043 (61 .07)

8 mm

 

CH8

 

1

2 .070 (68 .06)

10 mm

2 .080 (71 .01)

12 mm

2 .096 (75 .02)

22 mm

4900 (337)

 

CH16

 

1 5/8

3 .048 (88 .04)

25 mm

4600 (316)

3 .088 (98 .06)

1/4 in .0

 

Female NPT

6000 (413)

CH4

11/16

2 .013 (54 .01)

3/8 in .0

5300 (365)

 

CH8

1

2 .055 (64 .08)

1/2 in .0

4900 (337)

1 1/16

3 .003 (77 .00)

3/4 in .0

4600 (316)

 

CH16

 

1 5/8

3 .023 (82 .00)

1 in .0

4400 (303)

3 .083 (97 .03)

1/8 in .0

 

 

Male NPT

 

6000 (413)

 

CH4

 

11/16

1 .079 (45 .05)

1/4 in .0

2 .017 (55 .01)

3/8 in .0

 

CH8

 

1

2 .036 (59 .09)

1/2 in .0

2 .073 (69 .03)

3/4 in .0

 

5000 (344)

 

CH16

 

1 5/8

3 .029 (83 .06)

1 in .0

3 .067 (93 .02)

1/4 in .0

 

Female ISO➀

6000 (413)

CH4

11/16

2 .028 (57 .09)

1/2 in .0

5100 (351)

CH8

1 1/16

3 .029 (83 .06)

3/4 in .0

4800 (330)

 

CH16

 

1 5/8

3 .055 (90 .02)

1 in .0

4400 (303)

3 .083 (97 .03)

1/4 in .0

 

Male ISO➀

 

6000 (413)

CH4

11/16

2 .017 (55 .01)

1/2 in .0

CH8

1

2 .073 (69 .03)

3/4 in .0

 

5000 (344)

 

CH16

 

1 5/8

3 .029 (83 .06)

1 in .0

3 .067 (93 .02)

1/2 in .0

Female SAE/MS

4600 (316)

 

CH8

 

1

2 .074 (69 .06)

1/2 in .0

Male SAE/MS

4600 (316)

2 .048 (63 .00)

1/4 in .0

 

Male VCO fitting

 

6000 (413)

CH4

11/16

1 .098 (50 .03)

1/2 in .0

CH8

1

2 .035 (59 .07)

3/4 in .0

 

5000 (344)

 

CH16

 

1 5/8

 

2 .090 (73 .07)

1 in .0

1/4 in .0

 

Male VCR fitting

6000 (413)

CH4

11/16

2 .028 (57 .09)

1/2 in .0

4300 (296)

CH8

1

2 .073 (69 .03)

3/4 in .0

3700 (254)

CH16

1 5/8

3 .078 (96 .00)

 

manufacturer of Grade

A8901A/A995 3A CD4MCu
A890/A995 1B CD4MCuN
A890/A995 2A CE8MN
A890/A995 4A CD3MN

Standards

API 6D or ISO 14313:1999

Face to Face Standard

As per ASME B 16.10

Testing Standards

API Standard 594

 Inspection Standard

API 598.

 

Piston Check Valve Duplex Steel Dimension

 

Valves Size A B C
½” 65 46 19
¾” 80 58 23
1” 90 69 27
1 ¼” 105 75 32
1 ½” 120 85 41
2” 140 98 50

 

  • Desalination process Application
  • Offshore Industries
  • Power plants
  • Oil well industry
  • Chemical Industries.
  • Marine Application
  • Seawater Application
  • Marine and Ship Building Industries
  • Oil and Gas Industries
  • Petroleum Refineries and Petrochemicals

 

All wrapped up Duplex Stainless Steel Check valves are pressed to suit the extraordinary conditions for worldwide conveyances and can too customized as per customer's particular necessities.


Buy Duplex Spring Check Valve in hexagon body shape and straight flow pattern at best price

 

  • Pressure Seal Cover design available
  • Full open, disc out of flow
  • Seal ring construction for excellent sealing.
  • High flow capacity, minimize flow velocity
  • Low pressure cracking

 

NPS Weight (lb) G d D C H L f T N M
2” 37.05 3.062 2 5.098 4.074 5.039 8 0.006 0.063 4 0.075
2-1/2” 50.07 4.013 2.05 7.001 5.049 5.087 8.05 0.006 0.071 4 0.075
3” 63.09 5 3 7.048 6 6.034 9.05 0.006 0.075 4 0.075
4” 92.06 6.018 4 9.002 7.05 9.002 11.05 0.006 0.094 8 0.075
6” 163.01 8.05 6 10.098 9.051 10.075 14 0.006 1.002 8 0.087
8” 238.01 10.063 8 13.05 11.075 13.043 19.05 0.006 1.014 8 0.087
10” 390.02 12.076 10 15.098 14.025 15.087 24.05 0.006 1.022 12 0.098
12” 621.07 15 12 19.002 17.001 18.054 27.05 0.006 1.026 12 0.098

 

  • Destructive Test Report
  • Third Party Inspection Reports
  • Non Destructive Test Reports
  • EN 10204 3.1
  • Chemical Reports
  • PMI Test Reports
  • Mechanical Reports
  • NABL Approved Lab Reports
  • Visual Inspection Reports
  • Mill Test Certificates

 

   Material  Construction
# Compon.n, Material
1. Body SS 316
2. Poppet SS 316
3. Seat Seal Viton
4. Spring SS 316
5. Spring Guide SS 316
6. Stopper SS 316
7. Joint Seal Viton
8. Adaptor SS 316

 

ELEMENT
DUPLEX 2205
DUPLEX 31803
NI
4.50 – 6.50
4.50 – 6.50
C
0.030 max
0.030 max
MN
2.00 max
2.00 max
P
0.030 max
0.030 max
S
0.20 max
0.020 max
SI
1.00 max
1.00 max
CR
21.0 – 23.0
22.0 – 23.0
MO
2.50 – 3.50
3.0 – 3.5
N
0.08 – 0.20
0.14 – 0.20
FE
63.54 min
63.72 min

 

Grade YS (MPa) UTS (MPa) % Elongation Hardness(BHN)
31803 450 min. 620 min. 25 min. 293 max.
2205 450 min. 655 min. 25 min. 293 max.

 

STANDARD WERKSTOFF NR. UNS
Duplex 2205 1.4462 / 1.4462

UNS S31803 / UNS S32205

 

They are commonly introduced in applications that backflow would cause an issue. Be that as it may, since they are non return valves, they are a cheap, viable, and simple arrangement to unravel a potential issue. Backflow can cause an issue on the off chance that the backflow is sullied, and thus, sullies the media upstream.

For illustration, a sewer line will have a non return valve to guarantee that squander can take off but not re-enter the framework. They are moreover utilized in the event that backflow will cause harm to gear upstream that can as it were permit media to stream in one course.

 

Indonesia, Philippines, Belgium, Dammam -KSA Duplex Stainless Steel Poppet Check Valves
France, Europe, Thailand, Qatar Duplex 2205 Lift valve
Germany, Thailand, Malaysia, Czechia Duplex Stainless Steel Wafer Check Valves
USA, Bangladesh, Finland, Malaysia Duplex API Pressure Sealing Valve
Saudi Arabia (KSA), Kuwait, Brazil, South Africa Duplex Stainless Steel Float Ball Check Valves
South Africa, Singapore, Singapore, Bahrain Duplex Steel S31803 Valves
Australia, UK, Nigeria, Philippines Duplex Stainless Steel Flanged Nozzle Type Valves
 Malaysia, Hong Kong, UAE, Oman F51 F51 F53 F55 Duplex Stainless Steel Spring Check Valves Non Return Valves
Italy, Iran, Singapore, Chile Duplex Stainless Steel Vertical Lift Check Valves
Turkey, Norway,  Malaysia, United Arab Emirates (UAE) Ball Type Direction Non Return Duplex Valves
 Malaysia, Russia, Dubai, Netherlands Saf2205 Duplex Stainless Steel Duo Valves
Spain, Mexico, UK, Egypt API Duplex Stainless Steel 6A Lug Valves
Europe, Malaysia, UAE, United Kingdom -UK Duplex Stainless Steel Dual Plate Poppet Check Valves